WPF设置文本框只能输入数字

 

 

//前台UI设置
  <TextBox Width="100" Height="30" PreviewTextInput="TextBox_PreviewTextInput"  PreviewKeyDown="TextBox_PreviewKeyDown" InputMethod.IsInputMethodEnabled="False"/>

InputMethod.IsInputMethodEnabled="False"禁用输入法
后台代码限定只能输入数字

private void TextBox_PreviewTextInput(object sender, TextCompositionEventArgs e)
        {
            short val;
            if (!Int16.TryParse(e.Text, out val))
                e.Handled = true;
        }

        private void TextBox_PreviewKeyDown(object sender, KeyEventArgs e)
        {
            if (e.Key == Key.Space)
                e.Handled = true;
        }